`datetimeoffset` is datetime with timezone. I believe that sould be tested. But `fetch()` creates `Nette\DateTime` with `+00:00` offset. I didn't find the way to create `Nette\DateTime` with `+00:00` offset. The `createFromFormat()` creates `\DateTime`. I'll separate it to `->format('Y-m-d H:i:s P') === '2012-10-13 10:10:10 +00:00'`.

`sql_variant` is commented out in SQL dump, because cannot be fetched from `SELECT *`. I'll remove it completly and leave only comment.

`timestamp` should stay as 8 byte value (16 chars string). I'll test this.